Spike.



No. 651,0!6. Patented June 5, I900. E. L. MARUGG.

SPIKE.

Application filed July 19, 1898.)

(No Model.)

' 1 NDJL n4: norms PETERS co. wom'umov, WASHQNG o 7 UNITE STATES PATENT ERIOH LUDlVIG MARUGG, OF AUERBACH, GERMANY.

SPIKE.

SPECIFICATION forming part of Letters Patent No. 651,016, dated June 5, 1900.

Application filed July 19, 1898. Serial No. 686,370. (No model.)

To aZZ whom it fitay concern.-

Beitknown thatLERICHLUDWIG MARUGG, merchant, a subject of the King of Saxony, re siding at Auerbach,in Voigtland, in the Kingdom of Saxony, Germany, have invented certain new and useful Improvements in Spikes, (for which I have applied for a patent in Germany, dated April 18, 1898, and in Austria, dated April, 1898,) ofwhich the following is a specification.-

Myinvention relates to spikes, and has for its general object to provide an inexpensive, rigid, and strong spike of sheet metal and one which is adapted to be driven into a wall and serve as a support for a shelf, as well as for other purposes.

With the foregoing in mind the invention will be fully understood from the following description and claim when taken in conjunction with the accompanying drawings, in Which- Figure 1 is a perspective view of my improved spike. Fig. 2 is an inverted plan view of the spike. Fig. 3 is a plan View of the blank of sheet metal from which the said spike is made. Fig. 4 is a transverse section taken in the plane indicated by line 4 4 of Fig. 1. Fig. 5 is a plan view of a blank of sheet metal from which another form of spike is made. Fig. 6 is an edge elevation of said blank. Fig. 7 is a side elevation of the spike made from said blank. Fig. 8 is a transverse section taken on line 8 8 of Fig. 7.

The spike shown in Figs. 1 to 4 is made of a single piece of suitable sheet metal and comprises a spike proper, I, of triangular form in cross-section, a shank d, and a shoulder f, interposed between the spike proper and the shank. The spike proper,I,has a bottom wall 0 and inwardly-inclined side walls a I), while the shank d, which rests in a plane parallel to that of the spike, is provided with'ap'ei tures for the connection of a shelf or other thing to be supported and is also provided with a swell or protuberance g. This swell or protuberance is located immediately in rear of the shoulderf and is designed to stiifen the shank d and enable the same to offer a great resistance to load and pressure. It is formed by depressing the metal of the shank d at a point adjacent to the shoulder f, as shown in Figs. 1, 3,-and 4.

The spike shown in Figs. 7 and 8, which is formed from the blank shown in Figs. 5 and 6, is made up of a tapered spike proper, I, having a bottom wall 0 and upwardly-im clined side walls a b, and a shank d. It has a comparatively-deep shoulder f at the rear end of its spike proper and also has .a long and narrow swell g in its shank d immedi-- ately in rear of the shoulder f. This swell g is formed by depressing the metal of the shank d and, like the swell g,'(shownin Figs. 1 to 4,) has for its purpose to stiffen and strengthen the shank d.

Having thus described my invention, what I claim is- As an improved article of manufacture, a spike formed of a single piece of sheet metal and comprising a pointed spike proper of triangular form in cross-section, a shank havin g a depending swell adjacent to its forward end, and a shoulder interposed between the forward end of the shank and the rear end of the spike proper, substantially as specified.

In witness whereof I have hereunto set my hand in presence of two witnesses.

ERICII LUDWIG MARUGG.

Witnesses I WILLIAM FIEDLER, MARGRETHA FLEMPFLING. 

